<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on"
      label-position="left">

      <div class="title-container">
        <h3 class="title" v-if="isLoginMode">智慧养老管理平台</h3>
        <h3 class="title" v-else>注册新账户</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input ref="username" v-model="loginForm.username" placeholder="请输入用户名" name="用户名" type="text"
          tabindex="1" auto-complete="on" />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input :key="passwordType" ref="password" v-model="loginForm.password" :type="passwordType"
          placeholder="请输入密码" name="密码" tabindex="2" auto-complete="on"
          @keyup.enter.native="isLoginMode ? handleLogin() : handleRegister()" />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-form-item v-if="!isLoginMode" prop="email">
        <span class="svg-container">
          <svg-icon icon-class="email" />
        </span>
        <el-input ref="email" v-model="loginForm.email" placeholder="请输入邮箱" name="邮箱" type="email" tabindex="3"
          auto-complete="on" />
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;"
        @click.native.prevent="isLoginMode ? handleLogin() : handleRegister()">
        {{ isLoginMode ? '登录' : '注册' }}
      </el-button>

      <p class="switch-mode" @click="toggleMode">
        {{ isLoginMode ? '没有账户？注册' : '已有账户？登录' }}
      </p>

    </el-form>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'

export default {
  name: 'Auth',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('请输入正确的用户名'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码不得少于6位'))
      } else {
        callback()
      }
    }
    const validateEmail = (rule, value, callback) => {
      const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/
      if (!emailRegex.test(value)) {
        callback(new Error('Please enter a valid email address'))
      } else {
        callback()
      }
    }
    return {
      isLoginMode: true, // Toggle between login and registration
      loginForm: {
        username: '',
        password: '',
        email: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }],
        email: [{ required: true, trigger: 'blur', validator: validateEmail }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    toggleMode() {
      this.isLoginMode = !this.isLoginMode
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    handleRegister() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/register', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}

.switch-mode {
  text-align: center;
  color: #409EFF;
  cursor: pointer;
  margin-top: 20px;
  font-size: 14px;
}
</style>

<style lang="scss" scoped>
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  display: flex;
  justify-content: flex-end; // 将内容靠右对齐
  align-items: center; // 垂直居中
  background-image: url('/1.jpg'); // 设置背景图片路径
  background-size: cover; // 背景图片覆盖整个容器
  background-position: center; // 背景图片居中对齐
  background-repeat: no-repeat; // 不重复背景图片
  overflow: hidden;

  .login-form {
    width: 520px;
    max-width: 100%;
    padding: 40px 35px; // 修改 padding
    margin-right: 50px; // 增加右边距
    background-color: rgba(0, 0, 0, 0.5); // 背景半透明
    border-radius: 8px;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
